DIN EN 16339:2025-06
Ambient air - Method for the determination of the concentration of nitrogen dioxide by diffusive sampling; German version EN 16339:2025
| Fecha edición: |
2025-06-01
En Vigor
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| Idiomas disponibles: | Inglés, Alemán |
| Resumen: | This document specifies a method for the sampling of NO<(Index)2> in ambient air using diffusive sampling followed by extraction and analysis by colorimetry or ion chromatography (IC). It can be used for the NO<(Index)2> measurement in a concentration range of approximately 3 ?g/m³ to 130 ?g/m<(hoch)3>. A sample is typically collected for a period of 1 to 4 weeks, with exposure periods depending on the design of the samplers and the concentration levels of NO<(Index)2>. Several sorbents can be used for trapping NO<(Index)2> in ambient air using a diffusive sampler. This standard specifies the application of triethanolamine as the reagent. This standard describes the application of a tube-type sampler (with either a cylindrical or a slightly conical tube), a badge-type sampler and a radial-type sampler. The relative expanded uncertainty of NO<(Index)2> measurements performed using these tube-type diffusive samplers can potentially be lower than 25 % for individual measurements. When aggregating results to form annual average values, the relative expanded uncertainty can be further reduced to levels below 15 % due to the reduction of random effects on uncertainty. NOTE NO<(Index)2> passive samplers are also employed to measure NO<(Index)x> with the addition of an oxidant to convert ambient NO into NO<(Index)2>. A second NO<(Index)2> sampler is also deployed without the oxidant and the concentration of NO is determined from the difference of the two samplers. |
| Keywords: | Air|Air pollution|Air purification|Air quality|Ambient air|Analysis|Atmosphere|Chemical analysis and testing|Colorimetry|Concentration|Definitions|Determination of content|Determination procedures|Extraction|Ion-exchange chromatography|Mass concentration|Measurement|Nitric oxide|Nitrogen dioxide|Passive collectors|Pollution control|Pollution of the air|Sampling methods|Side testers|Specification (approval)|Sulphur dioxide|Test equipment|Testing|Tubes |
| ICS: | 13.040.20 - Aire ambiente |
| CTN: | |
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Equivalencia Internacional |
Idéntica EN 16339:2025 |
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Reemplazo Normas |
Reemplaza a DIN EN 16339:2013-11 Reemplaza a DIN EN 16339:2023-12 |
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